Light measuring device variably controlled according to focus mo

Details Light measuring device variably controlled according to focus mo Light measuring device variably controlled according to focus mo

1986-08-08

1988-09-27

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250214P, 354432, G01J 120

Patent

active

047744014

ABSTRACT:
A light measuring device having an automatic focus control mechanism including one-shot type focus control means for effecting focus control in one-shot type focus control mode and servo type focus control means for effecting focus control in servo type focus control mode, in which a field to be photographed is divided into a plurality of areas which are subjected to light-measurement, and a control circuit is provided to vary weighting for light-measurement of these divided areas according to the selection of the above-mentioned focus control mode effected by said automatic focus control mechanism.

REFERENCES:
patent: 4476383 (1984-10-01), Fukuhara et al.
patent: 4652109 (1987-03-01), Tsunekawa

Affiliated with

Also associated with

Rating

Light measuring device variably controlled according to focus mo does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Light measuring device variably controlled according to focus mo, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light measuring device variably controlled according to focus mo will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2399111